Standard Practice for Evaluating the Elastic Behavior of Asphalt Binders Using the Multiple Stress Creep Recovery (MSCR) Test
使用多重应力蠕变恢复(MSCR)试验评估沥青粘合剂弹性性能的标准实施规程
AASHTO R 92-18提供了一种通过使用
多重应力蠕变的结果(恢复百分比和不可恢复蠕变顺应性)
恢复(MSCR)试验。MSCR试验使用动态剪切流变仪(DSR)进行
在特定的温度下。主要用于T 240(滚压)残留物-
薄膜烘箱试验(RTFOT),但也可以对R 28(加压老化容器)的残留物进行试验
(PAV))。
This practice provides a means of evaluating the elastic behavior of an asphalt binder by using the results (percent recovery and non-recoverable creep compliance) from the Multiple Stress Creep Recovery (MSCR) test. The MSCR test is conducted using the Dynamic Shear Rheometer (DSR) at a specified temperature. It is primarily intended for use with residue from AASHTO T 240 [Rolling Thin-Film Oven Test (RTFOT)], but may also be run on residue from AASHTO R 28 [Pressurized Aging Vessel (PAV)].The elastic behavior of an asphalt binder can provide insight to the technologist indicating to what extent, if any, the binder could be modified with an elastomeric polymer.This practice may be used in conjunction with AASHTO M 320 or M 332.